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iOS Objective-C Basics (Retired) Pointers and Memory Array Size and Length

Posted by maosk
maosk
9,795 Points

Challenge Task: Pointers and Memory

Declare a float array named real_numbers that will hold 5 float numbers.

one of the answers is: float real_numbers[5];

could it also be?: float real_numbers[4];

3 Answers

RASHU BHATNAGAR
RASHU BHATNAGAR
Courses Plus Student 2,669 Points

Hi Mark,

If the array needs to contain 5 elements , then it needs to be defines as: float real_numbers[5]; where as the indexes will be starting from 0 to 4 , so altogether it will be containing 5 elements, with the first element starting from index 0 (real_number[0]) and last element will be of index 4 (real_number[4])

I hope it clarifies your confusion a little more...

Scott Evans
Scott Evans
4,236 Points
Scott Evans
Scott Evans
4,236 Points

To be blunt, no. If you want 5 element within the array you would have to specify 5.

I can see where your confusion is coming from though, the fact that array indexes start at 0. Just a slight misconception.

maosk
maosk
9,795 Points
maosk
maosk
9,795 Points

Thanks, Scott